刪除在PHP

Question

特殊字符我有特殊字符，如E，O和許多描述更多並試圖用其刪除：

$string = str_replace("é", " ", $string) 
$string = ereg_replace("é", " ", $string) 
$string = mysql_real_escape_string($string) 

但沒有任何工程，特殊字符仍然存在，並說明沒有插入到數據庫中。我無法刪除所有特殊字符，因爲在描述中有需要的html標籤。

謝謝你的幫助！

Answer 1

易peasy：

function clean($string) { 
    $string = str_replace(' ', '-', $string); // Replaces all spaces with hyphens. 
    return preg_replace('/[^A-Za-z0-9\-]/', '', $string); // Removes special chars. 
} 

用法：

echo clean('a|"bc!@£de^&$f g'); 

將輸出：abcdef-g

編輯：

Hey, just a quick question, how can I prevent multiple hyphens from being next to each other? and have them replaced with just 1? Thanks in advance!

function clean($string) { 
    $string = str_replace(' ', '-', $string); // Replaces all spaces with hyphens. 
    $string = preg_replace('/[^A-Za-z0-9\-]/', '', $string); // Removes special chars. 

    return preg_replace('/-+/', '-', $string); // Replaces multiple hyphens with single one. 
} 

refer this link

Answer 2

http://www.php.net/manual/en/function.str-replace.php

該函數返回字符串或與替換值的數組。

您需要使用返回值

$string = str_replace("é", " ", $string); 

Answer 3

使用character transliteration。

實施例：

<?php 
$string = "ʿABBĀSĀBĀD"; 

echo iconv('UTF-8', 'ISO-8859-1//TRANSLIT//IGNORE', $string); 
// output: ABBASABAD 

?> 

Answer 4

mysql_real_escape_string(htmlentities($string));